III, Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
Question 22: Mountains form over millions of years due to tectonic movements. The study of rocks and minerals helps us understand the formation of mountains.
A. Only by studying the rocks and minerals can we understand how mountains form over millions of years due to tectonic movements.
B. We can understand the formation of mountains due to tectonic movements after studying the rocks and minerals.
C. The study of rocks and minerals explaining the formation of mountains due to tectonic movements takes millions of years.
D. Not until studying the rocks and minerals, which take millions of years, can we understand the formation of mountains due to tectonic movements.
